Just an update I made a custom crossover line and changed the fuel sending unit and the issue is resolved. When I originally swapped just the fuel pump I must have damaged the line and sending unit.
Okay maybe I'll replace the tube it sounds like my issue because it still is sucking some fuel from passenger side, I'll just have to find the part number for that. Thanks for all the help everyone.
I know this has been Discussed already, however I didn't seem to find a solution. Ever since I replaced my stock fuel pump with the deatchwerks 340lph I've been having issue with My gas running out with around 5 gallons in the tank. I then bought a cheap ebay fuel pump with sending unit because...